FR379888A - Improvements to the recording and reproducing diaphragm for disc or cylinder phonographs - Google Patents

Improvements to the recording and reproducing diaphragm for disc or cylinder phonographs

Info

Publication number
FR379888A
FR379888A FR379888DA FR379888A FR 379888 A FR379888 A FR 379888A FR 379888D A FR379888D A FR 379888DA FR 379888 A FR379888 A FR 379888A
Authority
FR
France
Prior art keywords
phonographs
disc
recording
cylinder
reproducing diaphragm
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
Other languages
French (fr)
Inventor
Louis Jonckheere
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of FR379888A publication Critical patent/FR379888A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/16—Mounting or tensioning of diaphragms or cones

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
FR379888D 1907-07-13 1907-07-13 Improvements to the recording and reproducing diaphragm for disc or cylinder phonographs Expired FR379888A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR379888T 1907-07-13

Publications (1)

Publication Number Publication Date
FR379888A true FR379888A (en) 1907-11-21

Family

ID=1426140

Family Applications (1)

Application Number Title Priority Date Filing Date
FR379888D Expired FR379888A (en) 1907-07-13 1907-07-13 Improvements to the recording and reproducing diaphragm for disc or cylinder phonographs

Country Status (1)

Country Link
FR (1) FR379888A (en)

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